File处理工具
- import java.io.BufferedInputStream;
- import java.io.BufferedOutputStream;
- import java.io.BufferedReader;
- import java.io.File;
- import java.io.FileInputStream;
- import java.io.FileNotFoundException;
- import java.io.FileOutputStream;
- import java.io.FileWriter;
- import java.io.IOException;
- import java.io.InputStream;
- import java.io.InputStreamReader;
- import java.io.OutputStream;
- import java.text.DateFormat;
- import java.text.MessageFormat;
- import java.util.ArrayList;
- import java.util.Date;
- import java.util.Enumeration;
- import java.util.List;
- import java.util.Locale;
- import java.util.StringTokenizer;
- import java.util.zip.ZipEntry;
- import java.util.zip.ZipFile;
- /**
- *
- * @author IBM
- *
- */
- public class FileUtil {
- public static String dirSplit = "\\";//linux windows
- /**
- * save file accroding to physical directory infomation
- *
- * @param physicalDir
- * physical directory
- * @param fname
- * file name of destination
- * @param istream
- * input stream of destination file
- * @return
- */
- public static boolean SaveFileByPhysicalDir(String physicalPath,
- InputStream istream) {
- boolean flag = false;
- try {
- OutputStream os = new FileOutputStream(physicalPath);
- int readBytes = 0;
- byte buffer[] = new byte[8192];
- while ((readBytes = istream.read(buffer, 0, 8192)) != -1) {
- os.write(buffer, 0, readBytes);
- }
- os.close();
- flag = true;
- } catch (FileNotFoundException e) {
- e.printStackTrace();
- } catch (IOException e) {
- e.printStackTrace();
- }
- return flag;
- }
- public static boolean CreateDirectory(String dir){
- File f = new File(dir);
- if (!f.exists()) {
- f.mkdirs();
- }
- return true;
- }
- public static void saveAsFileOutputStream(String physicalPath,String content) {
- File file = new File(physicalPath);
- boolean b = file.getParentFile().isDirectory();
- if(!b){
- File tem = new File(file.getParent());
- // tem.getParentFile().setWritable(true);
- tem.mkdirs();// 创建目录
- }
- //Log.info(file.getParent()+";"+file.getParentFile().isDirectory());
- FileOutputStream foutput =null;
- try {
- foutput = new FileOutputStream(physicalPath);
- foutput.write(content.getBytes("UTF-8"));
- //foutput.write(content.getBytes());
- }catch(IOException ex) {
- ex.printStackTrace();
- throw new RuntimeException(ex);
- }finally{
- try {
- foutput.flush();
- foutput.close();
- }catch(IOException ex){
- ex.printStackTrace();
- throw new RuntimeException(ex);
- }
- }
- //Log.info("文件保存成功:"+ physicalPath);
- }
- /**
- * COPY文件
- * @param srcFile String
- * @param desFile String
- * @return boolean
- */
- public boolean copyToFile(String srcFile, String desFile) {
- File scrfile = new File(srcFile);
- if (scrfile.isFile() == true) {
- int length;
- FileInputStream fis = null;
- try {
- fis = new FileInputStream(scrfile);
- }
- catch (FileNotFoundException ex) {
- ex.printStackTrace();
- }
- File desfile = new File(desFile);
- FileOutputStream fos = null;
- try {
- fos = new FileOutputStream(desfile, false);
- }
- catch (FileNotFoundException ex) {
- ex.printStackTrace();
- }
- desfile = null;
- length = (int) scrfile.length();
- byte[] b = new byte[length];
- try {
- fis.read(b);
- fis.close();
- fos.write(b);
- fos.close();
- }
- catch (IOException e) {
- e.printStackTrace();
- }
- } else {
- scrfile = null;
- return false;
- }
- scrfile = null;
- return true;
- }
- /**
- * COPY文件夹
- * @param sourceDir String
- * @param destDir String
- * @return boolean
- */
- public boolean copyDir(String sourceDir, String destDir) {
- File sourceFile = new File(sourceDir);
- String tempSource;
- String tempDest;
- String fileName;
- File[] files = sourceFile.listFiles();
- for (int i = 0; i < files.length; i++) {
- fileName = files[i].getName();
- tempSource = sourceDir + "/" + fileName;
- tempDest = destDir + "/" + fileName;
- if (files[i].isFile()) {
- copyToFile(tempSource, tempDest);
- } else {
- copyDir(tempSource, tempDest);
- }
- }
- sourceFile = null;
- return true;
- }
- /**
- * 删除指定目录及其中的所有内容。
- * @param dir 要删除的目录
- * @return 删除成功时返回true,否则返回false。
- */
- public boolean deleteDirectory(File dir) {
- File[] entries = dir.listFiles();
- int sz = entries.length;
- for (int i = 0; i < sz; i++) {
- if (entries[i].isDirectory()) {
- if (!deleteDirectory(entries[i])) {
- return false;
- }
- } else {
- if (!entries[i].delete()) {
- return false;
- }
- }
- }
- if (!dir.delete()) {
- return false;
- }
- return true;
- }
- /**
- * File exist check
- *
- * @param sFileName File Name
- * @return boolean true - exist<br>
- * false - not exist
- */
- public static boolean checkExist(String sFileName) {
- boolean result = false;
- try {
- File f = new File(sFileName);
- //if (f.exists() && f.isFile() && f.canRead()) {
- if (f.exists() && f.isFile()) {
- result = true;
- } else {
- result = false;
- }
- } catch (Exception e) {
- result = false;
- }
- /* return */
- return result;
- }
- /**
- * Get File Size
- *
- * @param sFileName File Name
- * @return long File's size(byte) when File not exist return -1
- */
- public static long getSize(String sFileName) {
- long lSize = 0;
- try {
- File f = new File(sFileName);
- //exist
- if (f.exists()) {
- if (f.isFile() && f.canRead()) {
- lSize = f.length();
- } else {
- lSize = -1;
- }
- //not exist
- } else {
- lSize = 0;
- }
- } catch (Exception e) {
- lSize = -1;
- }
- /* return */
- return lSize;
- }
- /**
- * File Delete
- *
- * @param sFileName File Nmae
- * @return boolean true - Delete Success<br>
- * false - Delete Fail
- */
- public static boolean deleteFromName(String sFileName) {
- boolean bReturn = true;
- try {
- File oFile = new File(sFileName);
- //exist
- if (oFile.exists()) {
- //Delete File
- boolean bResult = oFile.delete();
- //Delete Fail
- if (bResult == false) {
- bReturn = false;
- }
- //not exist
- } else {
- }
- } catch (Exception e) {
- bReturn = false;
- }
- //return
- return bReturn;
- }
- /**
- * File Unzip
- *
- * @param sToPath Unzip Directory path
- * @param sZipFile Unzip File Name
- */
- @SuppressWarnings("rawtypes")
- public static void releaseZip(String sToPath, String sZipFile) throws Exception {
- if (null == sToPath ||("").equals(sToPath.trim())) {
- File objZipFile = new File(sZipFile);
- sToPath = objZipFile.getParent();
- }
- ZipFile zfile = new ZipFile(sZipFile);
- Enumeration zList = zfile.entries();
- ZipEntry ze = null;
- byte[] buf = new byte[1024];
- while (zList.hasMoreElements()) {
- ze = (ZipEntry) zList.nextElement();
- if (ze.isDirectory()) {
- continue;
- }
- OutputStream os =
- new BufferedOutputStream(
- new FileOutputStream(getRealFileName(sToPath, ze.getName())));
- InputStream is = new BufferedInputStream(zfile.getInputStream(ze));
- int readLen = 0;
- while ((readLen = is.read(buf, 0, 1024)) != -1) {
- os.write(buf, 0, readLen);
- }
- is.close();
- os.close();
- }
- zfile.close();
- }
- /**
- * getRealFileName
- *
- * @param baseDir Root Directory
- * @param absFileName absolute Directory File Name
- * @return java.io.File Return file
- */
- @SuppressWarnings({ "rawtypes", "unchecked" })
- private static File getRealFileName(String baseDir, String absFileName) throws Exception {
- File ret = null;
- List dirs = new ArrayList();
- StringTokenizer st = new StringTokenizer(absFileName, System.getProperty("file.separator"));
- while (st.hasMoreTokens()) {
- dirs.add(st.nextToken());
- }
- ret = new File(baseDir);
- if (dirs.size() > 1) {
- for (int i = 0; i < dirs.size() - 1; i++) {
- ret = new File(ret, (String) dirs.get(i));
- }
- }
- if (!ret.exists()) {
- ret.mkdirs();
- }
- ret = new File(ret, (String) dirs.get(dirs.size() - 1));
- return ret;
- }
- /**
- * copyFile
- *
- * @param srcFile Source File
- * @param targetFile Target file
- */
- @SuppressWarnings("resource")
- static public void copyFile(String srcFile , String targetFile) throws IOException
- {
- FileInputStream reader = new FileInputStream(srcFile);
- FileOutputStream writer = new FileOutputStream(targetFile);
- byte[] buffer = new byte [4096];
- int len;
- try
- {
- reader = new FileInputStream(srcFile);
- writer = new FileOutputStream(targetFile);
- while((len = reader.read(buffer)) > 0)
- {
- writer.write(buffer , 0 , len);
- }
- }
- catch(IOException e)
- {
- throw e;
- }
- finally
- {
- if (writer != null)writer.close();
- if (reader != null)reader.close();
- }
- }
- /**
- * renameFile
- *
- * @param srcFile Source File
- * @param targetFile Target file
- */
- static public void renameFile(String srcFile , String targetFile) throws IOException
- {
- try {
- copyFile(srcFile,targetFile);
- deleteFromName(srcFile);
- } catch(IOException e){
- throw e;
- }
- }
- public static void write(String tivoliMsg,String logFileName) {
- try{
- byte[] bMsg = tivoliMsg.getBytes();
- FileOutputStream fOut = new FileOutputStream(logFileName, true);
- fOut.write(bMsg);
- fOut.close();
- } catch(IOException e){
- //throw the exception
- }
- }
- /**
- * This method is used to log the messages with timestamp,error code and the method details
- * @param errorCd String
- * @param className String
- * @param methodName String
- * @param msg String
- */
- public static void writeLog(String logFile, String batchId, String exceptionInfo) {
- DateFormat df = DateFormat.getDateTimeInstance(DateFormat.DEFAULT, DateFormat.DEFAULT, Locale.JAPANESE);
- Object args[] = {df.format(new Date()), batchId, exceptionInfo};
- String fmtMsg = MessageFormat.format("{0} : {1} : {2}", args);
- try {
- File logfile = new File(logFile);
- if(!logfile.exists()) {
- logfile.createNewFile();
- }
- FileWriter fw = new FileWriter(logFile, true);
- fw.write(fmtMsg);
- fw.write(System.getProperty("line.separator"));
- fw.flush();
- fw.close();
- } catch(Exception e) {
- }
- }
- public static String readTextFile(String realPath) throws Exception {
- File file = new File(realPath);
- if (!file.exists()){
- System.out.println("File not exist!");
- return null;
- }
- BufferedReader br = new BufferedReader(new InputStreamReader(new FileInputStream(realPath),"UTF-8"));
- String temp = "";
- String txt="";
- while((temp = br.readLine()) != null){
- txt+=temp;
- }
- br.close();
- return txt;
- }
- }
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